[Freeswitch-users] FS uses private rtp address in the SDP

Douglas Adami webmaster.rumodigital at gmail.com
Sat Aug 16 17:56:26 MSD 2014


Hi Afshin,

I have the same scenario as you and 100% functional, this is my setup.

<X-PRE-PROCESS cmd="set" data="external_rtp_ip=stun:stun.freeswitch.org"/>
<X-PRE-PROCESS cmd="set" data="external_sip_ip=stun:stun.freeswitch.org"/>

<param name="apply-nat-acl" value="nat.auto"/>

<param name="rtp-ip" value="$${local_ip_v4}"/>
<param name="sip-ip" value="$${local_ip_v4}"/>
<param name="ext-rtp-ip" value="$${external_rtp_ip}"/>
<param name="ext-sip-ip" value="$${external_sip_ip}"/>

I'm new around here, so let's wait for a response from some expert.

good settings

Doug


On Sat, Aug 16, 2014 at 2:02 PM, afshin afzali <a.afzali2003 at gmail.com>
wrote:

> Hi Douglas,
>
> Thanks for your reply,
> I)
>
> In my scenario both of FreeSWITCH and client are behind the firewall.
>
> II)
>
> <X-PRE-PROCESS cmd="set" data="bind_server_ip=auto"/>
> <X-PRE-PROCESS cmd="set" data="external_rtp_ip=X.Y.Z.W"/>
> <X-PRE-PROCESS cmd="set" data="external_sip_ip=X.Y.Z.W"/>
>
> I have a static public IP (for Freeswitch) and I know what it is so I
> specified it explicitly.
>
> Do I have to set bind_server_ip to a specific IP in case of NAT traversal
> as I specified local IP addresses for sip and rtp?
>
> III)
> in the SIP profile
> <param name="sip-ip" value="192.168.10.59"/>
> <param name="rtp-ip" value="192.168.10.59"/>
> <param name="ext-sip-ip" value="X.Y.Z.W"/>
> <param name="ext-rtp-ip" value="X.Y.Z.W"/>
> for apply-nat-acl I examined nat.auto, rfc1918, ... :(
>
> I did not refer to external_sip_ip / external_rtp_ip vaiables in the SIP
> profile and explicitly defined external static IP.
>
>
> BEST,
>
> Afshin
>
>
>
> On Sat, Aug 16, 2014 at 5:01 PM, Douglas Adami <
> webmaster.rumodigital at gmail.com> wrote:
>
>> Hi,
>>
>> NAT scenario, correct?
>> https://confluence.freeswitch.org/display/FREESWITCH/NAT+Traversal
>>
>> try this:
>>
>> vars.xml
>> <X-PRE-PROCESS cmd="set" data="bind_server_ip=my.domain.com"/>
>> <X-PRE-PROCESS cmd="set" data="external_sip_ip=stun:stun.freeswitch.org
>> "/>
>> <X-PRE-PROCESS cmd="set" data="external_rtp_ip=stun:stun.freeswitch.org
>> "/>
>>
>>
>> sip_profiles:
>>
>> sipinterface_1.xml
>> <param name="apply-nat-acl" value="nat.auto"/>
>> <param name="ext-sip-ip" value="$${external_sip_ip}"/>
>> <param name="ext-rtp-ip" value="$${external_rtp_ip}"/>
>>
>> Doug
>>
>>
>> On Sat, Aug 16, 2014 at 7:26 AM, afshin afzali <a.afzali2003 at gmail.com>
>> wrote:
>>
>>> Hi Miguel,
>>>
>>> I do not understand how the ACL (if you mean apply-nat-acl) can effects
>>> on using public IP in SDP when I specified both ext-sip-ip and ext-rtp-ip
>>> in sip profile!
>>>  I changed the apply-nat-acl to a "always allow" and "rfc1918" but does
>>> not make difference.
>>>
>>> Afshin
>>>
>>>
>>> On Thu, Aug 14, 2014 at 3:18 PM, Miguel Oyarzo <miguelaustro at gmail.com>
>>> wrote:
>>>
>>>>
>>>> Wrong ACL?
>>>>
>>>>
>>>> On Wed, Aug 13, 2014 at 10:06 PM, afshin afzali <a.afzali2003 at gmail.com
>>>> > wrote:
>>>>
>>>>> Hi FreeSWITCHers:
>>>>>
>>>>> I configured a sip profile as bellow:
>>>>>
>>>>>
>>>>> =================================================================================================
>>>>> Name                    sipinterface_1
>>>>> Domain Name             N/A
>>>>> Auto-NAT                false
>>>>> DBName                  sofia_reg_sipinterface_1
>>>>> Pres Hosts
>>>>> Dialplan                XML
>>>>> Context                 context_1
>>>>> Challenge Realm         auto_to
>>>>> RTP-IP                  192.168.10.59
>>>>> Ext-RTP-IP              X.Y.Z.W
>>>>> SIP-IP                  192.168.10.59
>>>>> Ext-SIP-IP               X.Y.Z.W
>>>>> URL                     sip:mod_sofia at X.Y.Z.W:5060
>>>>> BIND-URL                sip:mod_sofia at X.Y.Z.W
>>>>> :5060;maddr=192.168.10.59;transport=udp,tcp
>>>>> HOLD-MUSIC              N/A
>>>>> OUTBOUND-PROXY          N/A
>>>>> CODECS IN               G722,PCMU,PCMA,GSM
>>>>> CODECS OUT              G722,PCMU,PCMA,GSM
>>>>> TEL-EVENT               101
>>>>> DTMF-MODE               rfc2833
>>>>> CNG                     13
>>>>> SESSION-TO              0
>>>>> MAX-DIALOG              0
>>>>> NOMEDIA                 false
>>>>> LATE-NEG                false
>>>>> PROXY-MEDIA             false
>>>>> ZRTP-PASSTHRU           false
>>>>> AGGRESSIVENAT           true
>>>>> CALLS-IN                0
>>>>> FAILED-CALLS-IN         0
>>>>> CALLS-OUT               0
>>>>> FAILED-CALLS-OUT        0
>>>>> REGISTRATIONS           1
>>>>>
>>>>> for every INVITE that comes in via this profile, FS replys with this
>>>>> SDP:
>>>>>
>>>>>    v=0
>>>>>    o=FreeSWITCH 1407905843 1407905844 IN IP4 192.168.10.59
>>>>>    s=FreeSWITCH
>>>>>    c=IN IP4 192.168.10.59
>>>>>    t=0 0
>>>>>    m=audio 25142 RTP/AVP 0 101
>>>>>    a=rtpmap:0 PCMU/8000
>>>>>    a=rtpmap:101 telephone-event/8000
>>>>>    a=fmtp:101 0-16
>>>>>    a=ptime:20
>>>>>
>>>>> Although the Contact header of 200 OK is correct :
>>>>> Contact: <sip:4000 at X.Y.Z.W:5060;transport=udp>
>>>>>
>>>>>
>>>>> Appreciate all comments,
>>>>> -- Afshin
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> "Efficiency is doing things right; effectiveness is doing the right
>>>> things (Peter Drucker)"
>>>>
>>>> Miguel Oyarzo
>>>> DevOps & VoIP Engineer
>>>> Linux User: # 483188 - counter.li.org
>>>> http://au.linkedin.com/in/mikeaustralia
>>>> Melbourne, Australia
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> 
>>>> 
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>>
>>>
>>> 
>>> 
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> 
>> 
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> 
> 
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
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